During the “Eleventh Five-Year Plan”period, the team and

Sungrow Power jointly undertaken and cooperated tocomplete two “Eleventh Five-Year” national science and technology support planprojects – “Research and development of direct-drive wind turbine

controlsystems and converters above 1.5MW” (2006BAA01A20), "Development andindustrialization of control system and converter for doubly-fed wind turbinesabove 1.5MW (2006BAA01A18)",

the project was successfully inspected onschedule. The project was industrialized in 2008 and is now equipped. More than40 commercial wind farms.

Figure  MW-class doubly-fed and permanentmagnet synchronous

direct-drive wind power converter products

developed incooperation with Sungrow Power